IBM Storwize V5010 Manual page 838

SAN Boot procedures: For SAN Boot procedures for other operating systems, check IBM
Knowledge Center for the Storwize V5000:
http://www.ibm.com/support/knowledgecenter/STHGUJ/
Complete the following steps to migrate your existing SAN Boot images:
1. If the existing SAN Boot images are controlled by an IBM storage controller that uses the
IBM Subsystem Device Driver (SDD) as the multipathing driver, you must use SDD V1.6
or later. Run the SDD datapath set bootdiskmigrate 2077 command to prepare the host
for image migration. For more information, see the Multipath Subsystem Device Driver
documentation.
2. Shut down the host.
3. Complete the following configuration changes on the storage controller:
a. Write down the Small Computer System Interface (SCSI) logical unit number (LUN) ID
that each volume is using, for example, boot LUN SCSI ID 0, Swap LUN SCSI ID 1,
and Database LUN SCSID 2.
b. Remove all of the image-to-host mappings from the storage controller.
c. Map the existing SAN Boot image and any other disks to the IBM Storwize V5000
Gen2 system.
4. Change the zoning so that the host can see the IBM Storwize V5000 Gen2 I/O group for
the target image mode volume.
5. Complete the following configuration changes on the IBM Storwize V5000 Gen2 system:
a. Create an image mode volume for the managed disk (MDisk) that contains the SAN
Boot image. Use the MDisk unique identifier to specify the correct MDisk.
b. Create a host object and assign the host HBA ports.
c. Map the image mode volume to the host by using the same SCSI ID as before. For
example, you might map the boot disk to the host with SCSI LUN ID 0.
d. Map the swap disk to the host, if required. For example, you might map the swap disk
to the host with SCSI LUN ID 1.
6. Change the boot address of the host by completing the following steps:
a. Restart the host and open the HBA BIOS utility of the host during the booting process.
b. Set the BIOS settings on the host to find the boot image at the worldwide port name
(WWPN) of the node that is zoned to the HBA port.
7. If SDD V1.6 or later is installed and you run bootdiskmigrate in step 1, reboot your host,
update SDDDSM to the current level, and go to step 14. If SDD V1.6 is not installed, go to
step 8.
8. Modify the SAN zoning so that the host sees only one path to the IBM Storwize V5000
Gen2.
9. Boot the host in single-path mode.
10.Uninstall any multipathing driver that is not supported for the IBM Storwize V5000 Gen2
system hosts that run the applicable Windows Server operating system.
11.Install SDDDSM.
12.Restart the host in single-path mode. Ensure that SDDDSM was correctly installed.
13.Modify the SAN zoning to enable multipathing.
14.Rescan the drives on your host and check that all paths are available.
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Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.1